876506489 has 2 divisors, whose sum is σ = 876506490. Its totient is φ = 876506488.

The previous prime is 876506483. The next prime is 876506503. The reversal of 876506489 is 984605678.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 824551225 + 51955264 = 28715^2 + 7208^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-876506489 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 876506489.

It is not a weakly prime, because it can be changed into another prime (876506483) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 438253244 + 438253245.

It is an arithmetic number, because the mean of its divisors is an integer number (438253245).

Almost surely, 2^876506489 is an apocalyptic number.

It is an amenable number.

876506489 is a deficient number, since it is larger than the sum of its proper divisors (1).

876506489 is an equidigital number, since it uses as much as digits as its factorization.

876506489 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2903040, while the sum is 53.

The square root of 876506489 is about 29605.8522761970. The cubic root of 876506489 is about 957.0141928133.

The spelling of 876506489 in words is "eight hundred seventy-six million, five hundred six thousand, four hundred eighty-nine".